Answer:
20. 13 cm
21. 12 cm
Step-by-step explanation:
20. isosceles means two sides are the same length, so you take the ten off the perimeter to get 26 remaining cm (36 -10) and you then divide that by two to get both sides of 13 cm (26 / 2)
21. because you know that if you split the triangle down the middle you get a right triangle and you can use a^2+b^2=c^2 to find the height, so we take the one side of 13 cm and half of the third side, which is 5, and you can find your answer (a^2 + 5^2 = 13^2 ---> a^2 + 25 = 169 ---> a^2 = 144 ---> a = 12)
Answer:
Step-by-step explanation:
<u>Solve:</u>
- 1 1/2 + 1/4
- = 1/4 + 2 2/3
- = 9/12 + 2 8/12
- = 3 17/12
- = 4 5/12.
Answer is 4 5/12.
Answer:
This answer has been deleted by the user.
Step-by-step explanation:
Answer:
t = 7 • ± √2 = ± 9.8995
Step-by-step explanation:
