Question 1. Determine whether the biconditional statement is true or false. If false, give a counterexample. An angle is a straight angle if and only if it is not acute.

A. false; m∠1 = 180°, ∠1 is not an acute angle
B. true
C. false; m∠1 = 63°, ∠1 is not a straight angle
D. false; m∠1 = 102°, ∠1 is not a straight angle

Question 2. Determine whether the biconditional statement is true or false. If false, give a counterexample.

An angle is a right angle if and only if it is not obtuse.

1. false; m∠1 = 70°, ∠1 is not a right angle
2. false; m∠1 = 90°, ∠1 is not an obtuse angle
3. true
4. false; m∠1 = 120°, ∠1 is not a right angle

1. B. true

2. 2. false; m∠1 = 90°, ∠1 is not an obtuse angle

Step-by-step explanation:

please mark me brainliest

step-by-step explanation:

the options are kind of confusing. i can tell you what i see going on here when i look at the graph.

the class and exam medians are closely related, and it looks like the low outlier on the exam did pull the median lower. [tex][/tex]

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.