Question

find the product by properties ( -40) × 13 + 40 × (-7)​

Answer 1

Answer:

Octagon

Octagon is a polygon in geometry, which has 8 sides and 8 angles. That means the number of vertices is 8 and the number of edges is 8. All the sides are joined with each other end-to-end to form a shape. These sides are in a straight line form; they are not curved or disjoint with each other. Each interior angle of a regular octagon is 135°. Therefore, the measure of exterior angle becomes 180° – 135° = 45°. The sum of the interior angles of the octagon is 135 × 8 = 1080°. In this article, let us discuss the octagon shape, its formulas, properties, and examples in detail.

Answer 2

Solution ⚡

➼ (-40) × 13 + 40 × (-7)

➼ (-40) × 53 × (-7)

➼ -2120 × (-7)

➼ 14840 Answer