All categories

2 years ago

HELP!! 9. What is the area of triangle AOB?

Mathematics

1 answer:

Akimi4 [234]2 years ago

5 0

Angles ∠ACD and ∠CAB are congruent because they are alternate angles. Then the area of the triangle AOB will be 22.53 square cm.

<h3>What is the area of the right-angle triangle?</h3>

The area of the right-angle triangle is given as

A = 1/2 x B x H

Where B is the base and H is the height of the right triangle.

We know that angles ∠ACD and ∠CAB are congruent because they are alternate angles.

α₁ = 40°

AO = OC = 7.8 cm

Then the area of the triangle will be

Area = 1/2 x 7.8 x 7.8 x tan40°

Area = 22.53 square cm

More about the area of the right-angle triangle link is given below.

brainly.com/question/16653962

#SPJ1

You might be interested in

The formula for electrical energy, P, is P = I2R, where I is current and R is resistance. The formula for I in terms of P and R

nydimaria [60]

Answer:

$i = \sqrt{ \frac{p}{r} }$

6 0

3 years ago

If sin just answer the please lol i don't feel like typing ASAP

yaroslaw [1]

Considering that the sine is negative and that the cosine is positive, the angle is on the fourth quadrant, hence option C is correct.

<h3>What are the signs of the sine and of the cosine in each quadrant?</h3>

Quadrant 1: Both positive.

Quadrant 2: Sine positive, cosine negative.

Quadrant 3: Both negative.

Quadrant 4: Sine negative, cosine positive.

Hence, since the sine is negative and that the cosine is positive, the angle is on the fourth quadrant, hence option C is correct.

More can be learned about quadrants at brainly.com/question/28021191

#SPJ1

5 0

2 years ago

I need help with number 1

Marianna [84]

Answer:

1a. 0< -4 false

1b. -3> or = -7 true

1c. 4<= -1/2 false

8 0

3 years ago

What is |-8| ? -16

olga nikolaevna [1]

Answer:

Those little "sticks" are called absolute value.

For example, the absolute value of 2 is 2, and the absolute value of −2 is also 2. The absolute value of a number may be thought of as its distance from zero along real number line.

Thus, it doesn't matter if the number is positive or negative. As it only counts its distance from 0, on the number line.

I hope it helps.

5 0

2 years ago

Read 2 more answers

A. Choudhury’s bowling ball factory in Illinois makes bowling balls of adult size and weight only. The standard deviation in the

Maksim231197 [3]

Answer and explanation:

Please find attached answer and explanation

7 0

3 years ago