★★★

In the diagram is right isosceles triangle ABC, with ∠A = 90°, AB = AC = 4 cm. Point B is folded over PQ so that it overlaps point D on side AC, and AD = 3 cm. Determine the length of PQ.

(from Twitter)

mathematics, unemasculated, befitting school years 6, 7 & 8

★★★

In the diagram is right isosceles triangle ABC, with ∠A = 90°, AB = AC = 4 cm. Point B is folded over PQ so that it overlaps point D on side AC, and AD = 3 cm. Determine the length of PQ.

(from Twitter)

★

In the diagram is the graph of linear equation *y* = *x* + 4 containing two points, P(–3, 1) and Q(4, 8).

Point R(

⒜* Write an equation that expresses

⒝ Determine the range of values of

⒞ Given

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