I am assuming 20mm = breadth and 11mm = height
Ar of Triangle = 1/2 x b x h
= 1/2 x 20 x 11
= 110mm^2
Problem 11
Answer: Angle C and angle F
Explanation: Angle C and the 80 degree angle are vertical angles. Vertical angles are always congruent. Angle F is equal to angle C because they are alternate interior angles.
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Problem 12
Answer: 100 degrees
Explanation: Solve the equation E+F = 180, where F = 80 found earlier above. You should get E = 100.
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Problem 13
Answer: 80 degrees
Explanation: This was mentioned earlier in problem 11.
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Problem 14
Answers: complement = 50, supplement = 140
Explanation: Complementary angles always add to 90. Supplementary angles always add to 180. An example of supplementary angles are angles E and F forming a straight line angle.
Answer:
abcdefghijklmnopqrstuvwxyz
Step-by-step explanation:
know i know my abcs why wont you sing with me
Volume = 45
Bc
3 rows wide
5 rows long
3 rows tall
5x3=15
15x3=45
