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3 years ago

Find the surface area 12cm 15cm 14cm 14cm

Mathematics

1 answer:

Ivahew [28]3 years ago

5 0

Answer:

1288

Step-by-step explanation:

Triangles on the top have surface area 15*14/2 there are four of them so multiply by four to get 420.

The rectangular sections all have area 12*14 except for the base. There are four of these equal sections, so the combined area is 672.

Lastly, the base has area 14*14, which is 196.

Summing all of these we get 1288

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4 years ago

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Find Equivalent Expression 1/2 (4x + 4)

Marrrta [24]

Answer:

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Step-by-step explanation:

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3 years ago

A golden rectangle has side lengths in the ratio of about 1 to 1.62. To the nearest tenth, what is length of the shorter side of

olga55 [171]

Answer: The length of the shorter side of a golden rectangle is about 24.7 inches.

Step-by-step explanation:

Given : A golden rectangle has side lengths in the ratio of about 1 to 1.62.

Since 1.62 > 1 , so

$\dfrac{\text{Length of shorter side}}{\text{Length of longer side}}=\dfrac{1}{1.62}$

If the length of the longer side is 40 inches , then we have

$\dfrac{\text{Length of shorter side}}{\text{40 inches}}=\dfrac{1}{1.62}\\\\ \Rightarrow\ \text{Length of shorter side}=\dfrac{1}{1.62}\times \text{40 inches}\\\\ \Rightarrow\ \text{Length of shorter side}=24.6913580247\approx24.7\text{ inches}$

Hence, the length of the shorter side of a golden rectangle is about 24.7 inches.

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3 years ago