A ladder is placed 30 inches from a wall. It touches the wall at a height of 50 inches from the ground.The angle made by the ladder with the ground is
degrees, and the length of the ladder is
inches.
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Answer:
no= length of the ladder
BC= distance between wall I lodder + 30
AB= length of wall =
AABC is a right angled triangle by pythagorean theorema
ACE AB²+ BC²
AC² = 30² +50² AC ² = 900+2500
AC² = 3400
AC= √3400 C 58.3
dength of the wall is 58.31 k
Angle made by the ground Le ladder with
the value of an
30
C
The method to find angle in a right
angled triangle by using sin", cos", tou! sint of approx to Le 583
value of angle C is sin 50 58.3
sin 0.8576 31°. CRounded value.) so the ladder makes angle of 31⁰ with the
ground
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