All categories

3 years ago

What is the sum of the degrees of the interior angles of a 19-gon?

1 answer:

7 0

Sum of interior angles formula = (n-2) x 180
where n = number of sides

so,
( 19-2 ) x 180
= 17 x 180
= 3060

ans : A

hope it helps :)

You might be interested in

Answer pleaseeeeeeeeee

katovenus [111]

Answer:

$y=-\frac{8}{7}x+4$

Step-by-step explanation:

A line is perpendicular to another if its slope is the negative reciprocal of the other.

Your lines are in slope intercept form here, y=mx+b, where m is the slope. We can see the given line has slope $\frac{7}{8}$ . The negative reciprocal of that is $-\frac{8}{7}$ , which is the slope of the third answer choice.

5 0

3 years ago

Round each number to the nearest tenth. What is the best estimate for the answer to 382.24 – 297.28?

PilotLPTM [1.2K]

When rounded off then it comes
382.2-297.3=84.9

8 0

3 years ago

Read 2 more answers

A small class took a survey of the number of siblings

jek_recluse [69]

Answer:

Line Plot

Step-by-step explanation:

I just toke the assignment! :/

4 0

3 years ago

Read 2 more answers

A tree is 117 inches tall. How tall is it in feet and inches? ?

xz_007 [3.2K]

Answer:

9 ft and 9 inches

Step-by-step explanation:

there are 12 inches in a foot

1ft = 12in

2ft = 24 in

3ft = 36 in

4ft = 48

and so on

9 ft = 108 inches which is the closes to 117.

So we have 9 ft

subtract 117 from 108, which is 9 inches left over

6 0

3 years ago

Three angles of a quadrilateral are 75,120, 90,then the fourth angle..

Roman55 [17]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Geometry

Sum of Angles in a Quadrilateral: 360

Step-by-step explanation:

Step 1: Set up

75 + 120 + 90 + ∠4 = 360

Step 2: Solve

Add: 285 + ∠4 = 360
[Subtraction Property of Equality] Subtract 285 on both sides: ∠4 = 75

5 0

3 years ago