Question

= ZBAC
But BCA + BAC + ABC = 180°
Square are equal)
(angles opposite equal sides are equal)
(angle sum property of a triangle)
= ZBCA + Z BAC + 90° = 180°
= ZBCA + ZBAC = 180°-90° = 90°
Thus, ZBCA = ZBCA = 90° : 2 = 45°
A
EXERCISE 3.4
(b) four right angles
1. Identify all the quadrilaterals that have :
(a) four sides of equal length
2. Name the quadrilaterals whose diagonals:
(a) bisect each other (b) are equal
Eyobin howauaris.
(c) are perpendicular bisector of each other​

Answer 1

Step-by-step explanation:

1(a)sqare, rhombus

(b)sqare, rectangle

2(a) square,rectangle,rhombos,triangle,etc

(b)sqare,rectangle

(c)sqare, rectangle, rhombos

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