A ABC is right angled at A (Fig11.95) Ad is
perpendicular to Bc. If A B = 5cm, BC=13cm and
AC=12cm, find the area of a ABC. Also find
the length of AD.
A
12 cm
w9
B
13 cm
Fig 11.25
please help me to solve this problem
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Answered by
1
Answer :
Area = 30cm^2
AD= 4.61 cm
Explanation :
As ABC is a right angled triangle, we can consider AC as height and AB as base.
Area of triangle ABC = 1/2(bh) = 1/2(5x12)= 30cm^2
To find AC:
if we consider BC as base, AD would be height.
Area of triangle ABC = 30 cm^2 = 1/2(ADxBC)
(13xAD)/2 = 30
AD= 60/13 = 4.61 cm
Answered by
2
Answer:
Area = 30cm^2
AD= 4.61 cm
Step-by-step explanation:
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