19.
The sides of a triangle are 15 cm, 17 cm and 8 cm. What is its area?
a) 20cm2
b) 40cm2
c) 60cm2
d) 80cm2
Answers
Answered by
0
Answer:
sides =8 cm, 17 cm and 15 cm
Area of triangle by Hero's Formula,
S=a+b+c/2
A=
s(s−a)(s−b)(s−c)
A=
20(20−8)(20−17)(20−15)
A=
20∗12∗3∗5
A=
4∗5∗3∗4∗3∗5
A=
4∗5∗3∗4∗3∗5
Area = 60cm^2
Answer (D) 60cm
2
Answered by
0
Answer:
area of triangle is 15+17+8=20cm^2
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