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Yuki888 [10]
3 years ago
12

Please help me figure this out!!!!!!

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
The answer is 129.13 is your answer. Remember, t<span>he perimeter of the base is 4s since it is a square. There is no formula for a </span>surface area<span> of a non-regular </span>pyramid<span> since slant height is not defined. To </span>find<span> the </span>area<span>, </span>find<span> the </span>area<span> of each face and the </span>area<span> of the base and add them.</span>
Sauron [17]3 years ago
8 0
Total surface area of pyramid = area of base + area of 4 triangular faces

area of base = 6.4*6.4 = 40.96 cm²
area of one triangular face = 1/2 * 6.4 * 6.1 = 19.52 cm²

Surface area of pyramid = 40.96 + 4 * 19.52 = 119.04 cm²
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Step-by-step explanation:

(a+bi)2

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Leya [2.2K]

Answer:

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Given the diagram below. If G is the circumcenter of ABC. DC = 16, GB = 21 and AZ = 19, find each measure.​
Jlenok [28]

Answer:

Step-by-step explanation:

Properties of a circumcenter;

1). Circumcenter of a triangle is a point which is equidistant from all vertices.

2). Point where perpendicular bisectors of the sides of a triangle meet is called circumcenter of the triangle.

From the picture attached,

9). AG = GB = GC = 21

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11). By applying Pythagoras Theorem in ΔGFB,

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     (21)² = GF² + (19)²

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12). By applying Pythagoras theorem in ΔGDB,

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3 years ago
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Answer:

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