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Approach please . 

p5

75 Answers
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Find the obtuse angle ÐABD, if area of triangle ABD, as shown in figure, is 8.75 cm2.  

 

Options ?

150 ?

correct.. solution please

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GEO TRIANGLES

Option a ..?

ANSWER IS (c)

prove

that's √2xy in last 3rd line

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What is the length of BC in right traingle ABC if AD is peroendicular to BC and AD=4 and BD=6

8/3?

26/3

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How many 8cm by 8cm tiles would it take to completely tile the floor of a 44m by 52m room?

357500?

Number of tiles = Area of the floor / ( Area of a tile ) 

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In circle O, chords AB and CD intersect at right angles at E. If AE=20 EB=36 and CE=24 what is the perimeter of circle

√793*44/7?

PFA the Approach : 

 

IMG 20181026 123600

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In a circle, AB is a diameter. Chords CD and EF are perpendicular to AB. The lengths AP, PQ, and QB are5,7,9respectively. Determine the sum of CP and EQ.

a) 4√5+2√3

b)2√5+12√3

c)4√5+6√3

d) √5+√3

where are P and Q points and what is the use of EF ?

circle2

Use this : CP^2 = AP x PB 
and EQ^2 = AQ x QB . 

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The smallest angle of a rhombus is half the measure of the larger angle. Tthe shorter diagonal is 20cm. Determine the perimeter of rhombus.

A) 40

B)60

C)80

D)100

uyty

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15405427696911666771278

Determine the area under the archway that was constructed on a straight base AB whose length is 4feet and with circular arcs AC and AB.

A) 16π/3

B) 16π/3-4√3

C)8π/3

D)16π/3+4

this has been told earlier by Raman sir 

152 IMG20180726134319

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If side of square is 3 what is the area of circle?

IMG 20181027 102908

PFA the solution

44996490 1874331676017788 6114611541925953536 o

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In equilateral triangle ABC with side 16. If ADis perpendicular to BC and AE is congruent to ED then BE=?

IMG 20181027 103625

AD ( Altitude of the triangle )  = AB sqrt{3}/2 

AD = 16sqrt{3}/2 = 8sqrt 3

AE = ED = 4 sqrt{3} 

BE = sqrt { DE^2 + BD^2 } = sqrt {[ 8^2 + 4(sqrt3)^2 ] 

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In a trapezoid AD=65,BC=52 ,AB=12abd CD=5. What is the area of traoezoid.

44835459 1874405376010418 6292118069208678400 o

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The sum of length of three sides of a right angle triangle is 26. The sum of squares of the lengths of three sides is 288.determine the area of triangle.

A)13

B)15

C)18

D)26

1540741215998 1401375054

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Find the area of the shaded region

IMG 20181028 143633

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in circle O , chords CD and AB intersect at right angles at E. if CE=8 and DE=6,  AE  = 24 What is the radius of circle.

 

wetg

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in a triangle ABC, AB=10, BC=14 and AC=18. and D lies on AC with BD=10. What is the ratio of AD:CD.

a)14:10

b)18:14

c)22:11

d)38:16

IMG 20181030 192356

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