A 26m ladder is placed against the wall in such a way that the foot of the ladder is 10cm away from the wall . How up on the wall is the upper end of the ladder ?

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Solution

I think the distance between wall and inclined ladder is 10m. not 10 cm

it is a right angled triangle

wall length from the ground to the inclined ladder spot
using Pythagoras thoerem

26²=10²+x²
x²=26²-10²
x²=676-100
x²=576
x=√576=24m

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A 26m ladder is placed against the wall in such a way that the foot of the ladder is 10cm away from the wall . How up on the wall is the upper end of the ladder ?

I think the distance between wall and inclined ladder is 10m. not 10 cm it is a right angled triangle wall length from the ground to the inclined ladder spot using Pythagoras thoerem 26²=10²+x² x²=26²-10² x²=676-100 x²=576 x=√576=24m

I think the distance between wall and inclined ladder is 10m. not 10 cm

it is a right angled triangle

wall length from the ground to the inclined ladder spot
using Pythagoras thoerem

26²=10²+x²
x²=26²-10²
x²=676-100
x²=576
x=√576=24m