6.4 is the width and the height is 7.8 what is the lateral and surface area of the square pyramid

Surface area of the square pyramid is 140.8 sq unit.

Step-by-step explanation:

Given,

Length (b) of each side of the square base = 6.4 unit

Height (h) of the pyramid = 7.8 unit

To find the surface area of the square pyramid.

Formula

Surface area of the square pyramid = 2bh+ sq unit

Hence,

Surface area of the square pyramid = 2×6.4×7.8+ sq unit

= 99.84 + 40.96 sq unit = 140.8 sq unit.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

77

step-by-step explanation: