3 years ago

Someone please help with this question

Mathematics

2 answers:

IRINA_888 [86]3 years ago

7 0

Answer:

A=230 cm2

Step-by-step explanation:

A1= L x W HEIGHT OF TRIANGLE=16-7=9

A1=20 x 7

A1=140 cm2

A2=1/2 x B x H

A2=1/2 x 20 x 9

A2=90 CM 2

Korolek [52]3 years ago

6 0

Answer:

230

Step-by-step explanation:

9 times 20 = 180

divide by 2 = 90

7 times 20 = 140

140 + 90 = 230

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3 years ago

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For the first is 3864
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2 years ago

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A sphere has a diameter of 14 units. What is the volume of the sphere in cubic units? If a cylinder has the same radius as the s

lesya692 [45]

Answer:

Step-by-step explanation:

r = 14/2 = 7units

$Volume of sphere=\frac{4}{3}*\pi*r^{3}\\\\=\frac{4}{3}*3.14*7*7*7\\\\=1436.03cubic units\\\\Volume of cylinder=\pi*r^{2}*h\\\\=3.14*7*7*14\\\\=2154.04 cubic units$