The formula for the surface area of a cube is 6a^2, where a = the length of one edge. To get the cube's edge length, use the vertex coords given to you [(4, 8) and (12,16)]. From 4 to 12 is 8 points, so each edge of the cube is 8 points long. 6(8)^2 = 384, so your answer is C.
So the total value of a triangle is 180°
So when u calculate the missing angle its value is 42°
180°-(60°+78°) = 42°
Answer:
sorry Don didn't know ksjshsndjd
Using the interactive protractor, the measure of the angle JHG is 115°
<h3>How to determine the measure of the angle?</h3>
The image that completes the question is added as an attachment.
The question requests that we determine the measure of JHG using a protractor.
To do this, we set one end of the protractor at 0°.
Then, we take the measurement of the other end
Using the interactive protractor, the other end stops at 115°
Hence, the measure of the angle JHG is 115°
Read more about angles at:
brainly.com/question/24839702
#SPJ1
Answer:
it have no answer in real number(but it have in complex number if you know)
Step-by-step explanation:
4x^2+36=0
4x^2=-36
(if you know complex numbers see this: x^2=-9 then

)