Base and height of 1st triangle are 12cm and 15cm respectively. Base and height of 2nd triangle are 20cm and 6cm respectively . Find the ratio of areas of 1st triangle to the 2nd triangle?
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the ratio of areas of 1st triangle to the 2nd triangle is 3 : 2
Step-by-step explanation:
base of the 1st triangle is 12 cm
height of the 1st triangle is 15 cm
then ,area of the 1st triangle is = 1/2 × 12 × 15 cm^2 = 90 cm^2
base of the 2nd triangle is 20 cm
height of the 2nd triangle is 6 cm
then, area of the 2nd triangle is = 1/2 × 20 × 6 = 60 cm^2
ratio of areas of 1st triangle to the 2nd triangle is = 90 : 60 = 3 : 2
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