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2 years ago

What is the surface area of this square pyramid?

Mathematics

2 answers:

sesenic [268]2 years ago

6 0

The area of the base = 15 * 15 = 225 m2
ande tharea of each sloping triangular side = 1/2 * 15 * 18 = 135 m2

so total surface area = 225 + 4*135 = 765m2

Tamiku [17]2 years ago

5 0

Im thinkng D.I hope it helped.

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Answer:

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2 years ago

Match the description with the ratio. 1. There are three silver bows for every four red bows in a bag. 3:10 2. There are four re

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2 years ago

A is directly proportional to b. When a is 6, b is 72. Find b when a is 8. 3

adelina 88 [10]

Answer:

a) "K" is proportional Constant K= 0.0833

b) The value of b = 99.639

Step-by-step explanation:

Explanation :-

Given 'a' is directly proportional to 'b'

a ∝ b

a = k b ....(i)

where "K" is proportional Constant

Case(i):-

when a =6 and b=72

a = k b

⇒ 6 = k (72)

⇒ $K = \frac{6}{72} = \frac{1}{12} = 0.0833$

Case(ii):-

Given a = 8.3

a = k b

⇒ 8.3 = 0.0833 ×b

⇒ $b = \frac{8.3}{0.0833} = 99.639$

Final answer:-

a)"K" is proportional Constant K= 0.0833

b) The value of b = 99.639

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2 years ago

HELP ASAP with this question.

Lubov Fominskaja [6]

D. -12
Lol I think I've explained this enough times now so you know the process

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2 years ago

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Answer:

Step-by-step explanation:

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