Question

2. Two poles of height 13 m and 7 m respectively stand vertically on a
plane ground at a distance of 8 m from each other. The distance between their tops is
a)9m
b)10m
c)11m
d)12m
​

Answer 1

Answer:

12m hai mark as briliant plz

Answer 2

Answre:

b) 10 m

Let AB and DE be the two poles

According to the question:

AB = 13 m

DE = 7 m

Distance between their bottoms BE = 8 m

Draw a perpendicular DC to AB from D, meeting AB at C.we get

DC = 8m, AC = 6 m

Applying, Pythagoras theorem in right-angled triangle ACD, we have

AD Square =DC Square+AC Square

=8square+6square=64+36=100

AD=Root100=10 M