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kondor19780726 [428]
3 years ago
6

5.) Find the perimeter and area of a triangle with a base of 11 cm, height of 13.4 cm, and sides of 15

Mathematics
2 answers:
Sonbull [250]3 years ago
7 0

Answer:

Perimeter = 40cm

Area= 73.7  cm2

Step-by-step explanation:

Hi, to answer this question we have to:

Sum all the sides for the perimeter:

Perimeter = 11cm+ 15 cm +14 cm = 40cm

Apply the area of triangle formula for the area (A)

A = bh/2

Where

b = base  

h = height

Replacing with the values given

A = (11 x 13.4)/2

A = 147.4/2

A =73.7  cm2

Feel free to ask for more if needed or if you did not understand something.

adelina 88 [10]3 years ago
6 0

Perimeter is the sum of the 3 sides:

11 + 15 + 14 = 40 cm.

Area is 1/2 x height x base:

1/2 x 13.4 x 11 = 73.7 square cm.

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