Answer:
b
Step-by-step explanation:
it isn't c because theres a theorem that says that opposite angles in a parallelogram are congruent
it isn't d because if the opposite angles are 90 and 90 they are supplementary
a is correct, but for the wrong reason
its b
Step-by-step explanation:
Please refer to the attachment
I think it is 0 in the graph it is on 0
Answer:30
Step-by-step explanation:
60 plus 30 equals 90 so common sense says that’s the answer
So as far as my knowledge goes, your answer for (a) is right - it is a cylinder.
(b) is a triangular pyramid - this is because the base is a triangle ( aka the one in the middle) and there are three triangles surrounding it and when they come together, they form a triangular pyramid.
hope it helped, if it did, please make me the brainliest answer - I need to move on to the next level :)