Cos 2 theta sin 10 degrees minus cos 10 theta sin 2 theta is equals to sign 20°​

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

answer: what are the following choices

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!