3 years ago

Three angles in a quadrilateral are 65, 80, and 100. Which of the following could be the 4th angle?

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

4 0

All the angles of the quadrilateral have to sum up to 360

So 65 + 80 + 100 = 245 and then 360 - 245 = 115

So its B. 115

You might be interested in

Assume Plant B received sunlight, and its rate of change was 1.6 inches a week instead of 1.4 inches per week. Would it be talle

Lisa [10]

Plant B would be taller.

7 0

3 years ago

Read 2 more answers

Really need help solving this problem

dimulka [17.4K]

Answer:

y = 8

Step-by-step explanation:

$\frac{y}{4} = \frac{5 + 5}{5} \\ \\ \frac{y}{4} = \frac{10}{5} \\ \frac{y}{4} = 2 \\ y = 4 \times 2 \\ y = 8$

4 0

3 years ago

Read 2 more answers

The length of a rectangle is twice its width. The Perimeter is 42 cm. Find the length of each side.

lakkis [162]

Answer:

A) L = 2*W

B) 2L + 2W = 42

We'll put Equation A) into B)

2*2W + 2W = 42

4W + 2W = 42

6W = 42 cm

Width = 7 cm

Length = 14 cm

Step-by-step explanation:

4 0

3 years ago

Can someone help me plzzzzzzzzz I’m failing math rn

zysi [14]

Answer:

number 1 is b

Step-by-step explanation:

4 0

2 years ago

a third grader has a goal of solving 100 math facts in 5 minutes (or 300 seconds). how many seconds can he spend on each math fa

arsen [322]

Answer:

1 fact per 3 seconds because you divide 300 by 100

5 0

3 years ago

Read 2 more answers