A regular octagonal pyramid has a base edge of 3m and a lateral area of 60m^2. Find its slant height.

1 answer:

4 0

Octagon = 8-side polygon

<u>Find area of 1 triangle:</u>
Area of one side triangle = 60 ÷ 8 = 7.5 m²

<u>Given area and length, find height:</u>
Area of each triangle = 7.6 m²
Length of each triangle = 3m

Area = 1/2 x base x height
7.5 = 1/2 x 3 x height
Heigth = 5m

Answer: Slanted Height = 5 m

You might be interested in

Help me for a cookie

Len [333]

Answer:

No solutions

Step-by-step explanation:

Step: Solve−3x+7y=−12 for x:

Step: Substitute

0 = -12 so No Solutions

5 0

2 years ago

Read 2 more answers

HELPPP

Mazyrski [523]

Answer:

Hello,

Step-by-step explanation:

y-intercept: x=0 ,f(0)=-10

$x^3-8x^2+17x-10\\\\=x^3-5x^2-3x^2+15x+2x-10\\\\=x^2(x-5)-3x(x-5)+2(x-5)\\\\=(x-5)(x^2-3x+2)\\\\=(x-5)(x^2-x-2x+2)\\\\=(x-5)(x(x-1)-2(x-1))\\\\=(x-5)(x-1)(x-2)\\$

x-intercepts are: 5,1,2.

6 0

3 years ago

Which number can be added to a rational number to explain that the sum of two rational numbers is rational? A) π B) 3 7/8 C) 8 D

Vikki [24]

I believe the answer would be C

6 0

3 years ago

Read 2 more answers

S is between B and C. True or false

Brut [27]

False because I looked it up online

8 0

4 years ago

Read 2 more answers

PLEASE HELP ASAP!!!! IT WILL BE DEEPLY APRECIATED AND NO LINKS PLEASE

mart [117]

Answer: Parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel. Colloquially, curves that do not touch each other or intersect and keep a fixed minimum distance are said to be parallel.

6 0

3 years ago