Answer:
-4
Step-by-step explanation:
2x + 5 = 85
2x = 80
x = 40
3x/(10-x)
3(40)/(10-40)
120/-30 = -4
Equating the formula (d is the diameter)
d^2/4 = 132.7
d^2 = 132.7*4/
d =
d = 13.0017147331
d= 13cm
<h3>
Answers: SSA and AAA</h3>
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Explanation:
The following theorems are triangle congruence theorems
- SSS = side side side
- HL = hypotenuse leg
- SAS = side angle side
- AAS = angle angle side
- ASA = angle side angle
The HL theorem only works for right triangles. It's effectively a special case of SAS.
After the theorems mentioned are crossed off the answer choice list, we're left with SSA and AAA as the answers.
SSA isn't a congruence theorem because it could lead to vague outcomes (refer to the SSA ambiguity for more info).
AAA isn't a congruence theorem either. Imagine having 2 equilateral triangles but one triangle is much larger than the other. Clearly they aren't congruent even though the angles are all the same (60 degrees).
Answer:
because they add up to 90 and a right angle is 90 itself which would give you 180
Answer:
bottom: 12 x 12 = 144
1st triangle: (12 x 8)/2 = 48
2nd triangle: 48
3rd triangle: 48
4th triangle: 48
144 + 48 + 48 + 48 + 48 = <u>336 cm squared</u>