Question

1. Find the area of each of the following trian

13 cm
4 cm​

Answer 1

Answer:

13cm = 30cm^2

4cm= 10cm^2

Step-by-step explanation:

V. we would find the base by Pythagoras theorem.

13*13-5*5

=144

=12*12

So base = 12 cm

Area of triangle =1/2*b*h

=1/2*12*5

=30cm^2

ii. area of triangle=1/2*4*5

=10cm^2

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Answer 2

Step-by-step explanation:

1) height = 11.6

base=15

area=11.6*15*1/2=87sqcm

2)h= 5

b=4

a=4*5*1/2=10sqcm

3)h=8

b=15

a=15*8*1/2=60sqcm

4)h=3

b=4

a=3*4*1/2=6 sq cm

5)hypotenuse = 13cm

side = 5cm

according to Pythagoras property,

(s) sq =(h) sq - (other side) sq

x sq= (13*13) - (5*5)

=169-25=144

x=root of 144 =12cm

height = 5

base = 12

area = 5*12*1/2=30sq cm

6)h =4cm

b= 7.5cm

area = 4*7.5*1/2=15sqcm