Answer:
a = 69
Step-by-step explanation:
The linear pair equals 180 degrees.
a + 90 + 21 = 180
a + 111 = 180
a = 69
nice!
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Step-by-step explanation:
Answer:
right angles and obtuse angles
Step-by-step explanation:
We assume that anything that <em>looks like</em> a right angle <em>is</em> a right angle.
The angles at the left end of each horizontal line are right angles.
The angles at the right end of each horizontal line are obtuse angles.
The angle where the diagonal lines meet is a right angle.
The shape contains right angles and obtuse angles.
Salutations!
How do you find the area of a triangle
To find the area of a triangle, you need to know the formula of the triangle to work it out. The following is the formula of the triangle:
H - height
B- Base
You need to multiply the base and height and divide it by 2.
Lets solve a question!
Find the area of a triangle with a base of 32mm and a height

of 35mm
Area =

=

=

=

=

Hope I helped (:
Have a great day!
Answer:
-9
Step-by-step explanation:
{-2*-1^-2/-2-1*-1-3}3
= -9
Answered by GAUTHMATH