Answer: Option 4
Step-by-step explanation:
(linear pair)
(angle sum in a triangle)
(linear pair)
Answer:
Square root of 30 is irrational because the answer is a non-terminating decimal.
4/7 is rational because it is a fraction.
21 divided by the square root of 4 is irrational because the result is a non-terminating decimal.
Pi is irrational because it's a non-terminating decimal.
-27 is rational because rational numbers can be positive or negative.
I hope this is correct! :-)
The answer is the option A, which is: A. Equilateral triangles.
The explanation for this answer is shown below:
By definition, a tetrahedron is a solid in three dimensions that has: six sides, four vertices and four triangular faces. These faces are equilateral triangles, which means that all the sides are equal and all the interior angles measure 
degrees.
The tetrahedron is also called "triangular pyramid".
You can play 8 games as you only have 17 dollars left after buying the snack. If you wanted to get rid of the 1 dollar remaining, tip the shop.
Answer:
9 cm
Step-by-step explanation:
The formula to find the area of a square is Base times height (B x H)
Since a square has equal sides, it means each side is 3 centimeters.
So, all you have to do is 3 times 3.
3 x 3=9
<u>Final answer</u>
9 cm
