2 years ago

This is confusing I need help .

Mathematics

1 answer:

Fittoniya [83]2 years ago

8 0

Answer:

x = 54
angle ACD = 124°

Step-by-step explanation:

The rule is that the exterior angle (ACD) is equal to the sum of the remote interior angles (the two marked angles on the right).

You are expected to use this relation to write and solve an equation.

exterior angle = angle D + angle B

(2x +16) = 58 + (x+12)

2x +16 = x +70

x + 16 = 70

x = 54

Then angle ACD is ...

angle ACD = (2x +16)° = (2·54 +16)°

angle ACD = 124°

You might be interested in

A study reported that students who play sports get better grades in school than students who do not play sports. Determine which

Stolb23 [73]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Among the choices provided the incorrect statement is "<span>Playing sports will cause students to get better grades in school."</span>

4 0

3 years ago

What series of transformations map triangle △ABC onto △EDF to prove that ABC≅EDF ?

Nonamiya [84]

Hello!

The correct answer is A translation 3 units up then a reflection across the x-axis.

Translation: moving/sliding a figure
Reflection: taking a figure and flipping it over a line.

7 0

3 years ago

Read 2 more answers

A figure has vertices at the points (6,5), (6,-4), (-4,-4) and (-4,5). What is the area of the figure

Oxana [17]

Answer:

90 units²

Step-by-step explanation:

The rectangular figure is 10 units wide (from -4 to +6) and 9 units high (from -4 to +5), so its area is 10·9 = 90 square units.