Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

Hoe groot is de langste zijde van dit parallellogram ?	A. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	B. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	C. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	D. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	E. $https://latex.codecogs.com/png.image?\inline \dpi{120}7$

[ 4-3510 - op net sinds 17.3.14-(E)-2.11.2023 ]

One of the sides of this parrallelogram measures 3. What is the length of the other side ?	A. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	B. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	C. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	D. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt{51}$
	E. $https://latex.codecogs.com/png.image?\inline \dpi{120}7$

x² = 3² + 8² − 2.3.8.cos 60°
x² = 9 + 64 − 24
x² = 49